This build isn’t necessarily tampon-dependent but the size, weight, and plastic covering (reducing friction) make it ideal for this particular design. We love a good gun build around here, be it mostly benign or downright terrifying.
CHEAP PIEZO ACTUATOR MOD
The gun is single-shot, but is working on a mod to make it fully automatic. If the gas/air mixture is close enough, the compacted cotton bullet should fly. Snap in the piezo mechanism from a lighter, fill the bottle with an Axe cloud, and screw it on to the body. Aside from those, you just need to add a PVC tube for a barrel, a bottle that fits the threading on the body, and a pair of o-rings to make a nice, tight seal. Just use the Axe as the propellant in a 3D-printed, gas-powered tampon gun.Īs you’ll see in the assembly and demonstration video after the break, most of the parts in ’ modular gun design are 3D-printed. They increase this to over 10mm with the addition of a plastic hinge, another idea to keep in mind when building that next tiny robot. And there are more ideas to be taken advantage of in their ants, which you can see being built in the video below.Ĭontinue reading “Robot Ants Wear Circuitry As Exoskeleton” → Posted in Robots Hacks Tagged ant, festo, mid, piezo actuatorįinally, there’s a way to get rid of those applicator-less tampons that literally no one uses while also destroying a bunch of Axe body spray. However, these give a deflection of only 1.5mm in both directions, not enough for walking. For the legs they used three piezo bending transducers. We also like how they took a the mouse sensor from under a regular computer mouse and attached it to the ant’s underside, pointing down for precision dead reckoning. We mortal hackers may not have the equipment for doing this ourselves in our workshops but seeing the beautiful result should be inspiration enough to get creative with our copper tape on the outer surfaces of our 3D printed, CNC’d, or hand-carved parts. While FESTO didn’t give specifics about their process, a little research shows that 3D MID involves the 3D printed object being made of a special non-conductive metal material, a laser then “drawing” the traces in the material, and then dipping the object in various baths to apply copper, nickel and gold layers. The wiring is “painted on” using a 3D MID (Molded Interconnect Device) process. The exoskeleton is 3D printed but they then use the outer surface of that exoskeleton as a circuit board for much of the circuitry. Watching a group of them cooperate to move objects around looks so real that you’re instantly reminded of the pests crawling across your floor, but looking at them up close they’re a treasure trove of ideas for your next robot project. keeps coming up with new tricks that make us both envious and inspired. As a finalist for the Rethink Displays challenge of the 2021 Hackaday Prize, we’re looking forward to seeing the project develop over the coming months. Early tests look promising, but clearly has quite a bit of work ahead of him. We’ve seen the ESP32 drive a laser galvanometer to play a game of Asteroids, but recreating such a setup in a small enough package to fit onto a pair of glasses would certainly be an impressive accomplishment. The tentative plan is to generate the vector data with a smartphone application, send it to an ESP32 microcontroller within the glasses, and then push the resulting analog signals through a 100 V DC-DC boost converter to get the mirror moving. has put together a prototype of what the mirror system might look like, but says driving the high-voltage piezo actuators poses some unique challenges. Piezo actuators are used to steer the mirror. By bouncing a low-power laser off of a piezo-actuated mirror, the hope is that the glasses will be able to project simple vector graphics onto a piece of reflective film usually used for aftermarket automotive heads-up displays (HUDs). While they might not be able to compete with the latest Microsoft HoloLens, these laser AR classes from promise to be far cheaper and much more approachable for hackers. Unfortunately for those looking to experiment with this technology, the devices released so far have been prohibitively expensive. Tech companies like Google and Microsoft have been working on augmented reality (AR) wearables that can superimpose images over your field of view, blurring the line between the real and virtual.
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